i think the point here is for that the obama administration, it is to cooperate with putin. there are four-party counterterrorism talks that happen between our intelligence service, their intelligence service, same with the fbi and sfb. that exchange at the tactical level is going to go on. politically, the administration is going to be careful they don't get caught in a tidal wave. >> let me go to richard engel for another thought. >> the worry is what happens next. look at the al qaeda web forums all day, they are celebrating what is going on in boston. they are talking about how much this is costing the city of boston, how americans are, quote, living in fear, how the city is under siege. they are absolutely thrilled by the images that have been on american televisions today. and there is a concern that this could lead to a copycat. someone who could be self-inspired and with a very small amount of expertise and small amount of money can have a very big impact. >> are they claiming any role? or any solidarity with the action or simply in the result? >> solidarity, certain